Brendan Rodgers’s Celtic won against Aberdeen in the Scottish League Cup on Sunday.
Celtic ace Ryan Christie was on loan at Aberdeen for 18 months.
Brendan Rodgers’s Celtic are in Scottish League Cup final action today.
Gary Mackay-Steven has been in fine form in the Scottish Premiership with Aberdeen and will feature against former club Celtic at Hampden Park.
Glasgow Rangers goalkeeper Allan McGregor returned to Ibrox in the summer transfer window.
Brendan Rodgers’s Celtic, Wolverhampton Wanderers and Aston Villa are reportedly interested in Aberdeen defender Scott McKenna.
Celtic appeared to have no second thoughts about letting Mackay-Steven leave for Scottish Premiership rivals Aberdeen in 2017.
Celtic reportedly made a bid to sign Aberdeen's highly-rated Scottish Premiership centre-back Scott McKenna in the summer.
Glasgow Rangers defender Joe Worrall, on loan from Nottingham Forest, was in action for Steven Gerrard’s Ibrox club against Aberdeen.
Reported Celtic summer target Scott McKenna played for Aberdeen against Rangers on Sunday.
Far more notable than Celtic reaching 61 domestic games in succession without defeat was the consummate ease with which they swatted aside a supposed threat.
Derek McInnes has turned down the opportunity to take charge of Sunderland and will instead remain as Aberdeen manager, the Scottish club have announced.
No sooner had Celtic completed their domestic treble by defeating Aberdeen in the Scottish Cup final than discussion moved towards what exactly Brendan Rodgers can do next. Celtic are believed to be keen on four players – a centre-back, midfielder, winger and striker – as they plan for the new campaign.